Quote:
Originally Posted by RacnJsn95
I have also noticed the bowing as you mentioned. I don't think the TB is the problem, but the intake manifold itself... Something else I noticed is that not all of my threaded inserts on the manifold are flush with the mounting face, and are sticking out slightly. I tried tapping them back in but they wouldn't budge. I suspect it's always been this way. Definitely bowed though.
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If you think the gap is happening at the intake manifold, I wonder if a new o-ring would help? I know mine has a permanent flattened contact area.